The Munster and Ireland fly-half Ronan O'Gara has been cited for allegedly kicking an opponent during Sunday's Heineken Cup game with Edinburgh.

The 35-year-old was reported by the citing commissioner Alberto Recaldini after a second-half incident involving Edinburgh's lock Sean Cox during the game at Murrayfield which Munster won 26-17.

If found guilty, O'Gara could find himself banned for some or all of Ireland's Six Nations games, which begin away to Wales on 2 February. The citing carries a minimum of a four-week ban with a top-end sanction of between 12 weeks and a year should he be found guilty.

Racing Métro's centre Fabrice Estebanez has also been cited for allegedly striking the Saracens and England wing David Strettle with an arm during his side's 37–28 defeat on Saturday. The charge carries a ban of up to eight weeks.

Stade Français's lock Juan Cruz Guillemain faces a more serious charge under the same law after allegedly striking Grenoble's Fabien Alexandre with his head. The top-end entry point for Guillemain's citing is 16 weeks to two years.

All three cases will be heard in Dublin on Thursday, with the judge Jeff Blackett passing judgment on O'Gara while Ireland's independent judicial officer Pat Barriscale will rule on both Estebanez and Guillemain.